I recently got a 20 inch display, and I just set it up. The picture is great but I have an few concerns. How do I make my main desktop the 20 inch and then my Powerbook screen, secondary. Also, is it normal for the display to be making a noticable humming noise. I never notice it on the ones at the stores. On mine, it's very noticable.

I figured out the main display question, but I have another question. I have a Quicktime video, that I want to play on the big display. When I go to full screen, mode the movie automatically transfers to the Powerbook...

Also, I'm amazed at the quality of the screen. It's way better than the Powerbook's. Also what does it mean to calibrate the screen.

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